PART NO : AB8362P Commonly mounted on the front axle, the LQ-2 limiting and quick release valve serves two functions; the valve limits front axle service brake application by 50% and serves as a quick release valve for that axle. It is controlled by a TW-1 control valve on the vehicle dash, which allows it to be placed in the 50% limiting (slippery road) position or in the normal (dry road) position. In the normal (dry road) position, it will deliver full application pressure. MODEL:Suit LQ-2 SUPPLY PORT:3/8" NPT DELIVERY PORTS:3/8" NPT (2) CONTROL PORT:1/4" NPT REPLACES:Direct replacement for Bendix 229505N CROSS REFERENCES:29505, 283525, 513947, 223821, 229505N, 4R9318, 6M4527, 2303058, 8A3141, 825494, 10130257, 10130386, 213326, KN32030, AE32589, 319051, K295-67, 745229505, 336751C91, 4002167R91, 625444C91, 19TN252, 1321081, 1361408, 21081, 724064, 724160, 801516, K29567, LQV-5697, 2396430, 20009, 13208E6516, 13220E1500, 034084, V1092935, 239659.A cross reference listing means that this valve is a suitable replacement for the part numbers listed. Some changes in air line plumbing may be required.